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Finding the Fourth Proportional to 35,996.81, 53,999.76 and 12,308.90

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Solution

The fourth proportional to 35,996.81, 53,999.76 and 12,308.90 is: 18,464.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,996.81 : 53,999.76 = 12,308.90 : x
  2. Step 2: Convert to fraction form
    35,996.81/53,999.76 = 12,308.90/x
  3. Step 3: Cross multiply
    35,996.81x = 53,999.76 × 12,308.90
  4. Step 4: Simplify right side
    35,996.81x = 664,677,422.02
  5. Step 5: Solve for x
    x = 664,677,422.02/35,996.81
  6. Step 6: Final answer
    x = 18,464.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.